Over 90 per cent of Canadians live within range of a Weatheradio transmitter. Broadcast range for a Weatheradio transmitter is approximately 60 kilometres, but this depends on things like terrain, the quality of the receiver, and the antenna height above ground.

Weatheradio broadcasts on the frequencies 162.400, 162.425, 162.450, 162.475, 162.500, 162.525, and 162.550 MHz. At selected locations, low power broadcasts without the alert tone are transmitted on the regular FM or AM band. A Weatheradio receiver is not required to hear these broadcasts.

Before you buy a receiver, make sure your area is covered by one of these transmitters. Check the provincial list for the transmitter and frequency nearest to your home.